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Alpine ibex

life science Maturity 7-9 Next article →

The Alpine ibex, known scientifically as Capra ibex, is a specialized species of goat native to the Alps of central Europe.

004 Combo Full Moon Sunset Sea of Clouds Wild Alpine Ibex Snow Photo by Giles Laurent
004 Combo Full Moon Sunset Sea of Clouds Wild Alpine Ibex Snow Photo by Giles Laurent

This animal is a vital part of high-altitude ecosystems. It belongs to the genus Capra, which includes nine other goat species. The Alpine ibex is highly adapted to survive in rugged, mountainous environments. These goats are strictly herbivorous, meaning they eat only plants. Their diet primarily consists of various grasses, such as Festuca and Poa. During the summer, they supplement this with herbs. In autumn and winter, they eat dwarf shrubs and conifer shoots.

Alpine ibex Cima di Terrarossa 7
Alpine ibex Cima di Terrarossa 7

To survive at elevations as high as 4,000 meters, the Alpine ibex has developed incredible physical adaptations. They are master climbers capable of navigating steep, rough terrain and open alpine meadows. Their hooves are sharp and highly separated to provide grip on rocky surfaces. Additionally, they possess a rubbery callus under their front feet. This helps them scale cliffs and slopes as steep as 30 to 45 degrees. They have even been observed scaling the 57-degree walls of the Cingino Dam in Italy. While climbing, females and kids often use a zig-zag path to ascend.

Alpine ibex Cima di Terrarossa 7
Alpine ibex Cima di Terrarossa 7

The species exhibits sexual dimorphism, meaning males and females have distinct physical differences. Males are much larger and more robust than females. A male can reach a height of 100 centimeters at the withers and weigh up to 100 kilograms. In contrast, females are smaller, with a shoulder height of 70 centimeters and a weight of only 60 kilograms. Both sexes possess large, backward-curving horns with an elliptical cross-section. These horns feature transverse ridges on their front surfaces. However, male horns are substantially longer than female horns. While females reach only 60 centimeters, males can grow much larger.

Capra ibex 06 MWNH 1078
Capra ibex 06 MWNH 1078

Socially, the Alpine ibex lives in groups organized by sex and age. For most of the year, adult males and females live in separate habitats. Females typically form stable groups of 5 to 10 members, often including dependent kids. Males live in groups ranging from 2 to 16 individuals, though some groups exceed 50. Older males are often found living alone. The two sexes only congregate during the breeding season, which occurs in December and January. During this time, males use their long horns to fight for access to females. They establish a dominance hierarchy through combat, often clashing head-to-head or bashing rivals' sides.

046 Male Alpine ibexes fighting during mating season in Grammont Photo by Giles Laurent
046 Male Alpine ibexes fighting during mating season in Grammont Photo by Giles Laurent

History shows that the Alpine ibex nearly vanished from the wild. Between the 16th and 18th centuries, hunting caused the species to disappear from most of its range. By the 19th century, the population suffered a severe bottleneck. This means the number of individuals dropped to fewer than 100. This event led to very low genetic diversity across the entire species. Remarkably, all Alpine ibexes living today are descendants of a single stock from Gran Paradiso National Park in Italy.

Guido Tosi Ibex release
Guido Tosi Ibex release

Conservation efforts have since successfully reintroduced the species to parts of its historical range, including Slovenia and Bulgaria.

Guido Tosi Ibex release
Guido Tosi Ibex release

Scientific study of the ibex began when Carl Linnaeus first described the species in 1758.

Capra ibex 06 MWNH 1078
Capra ibex 06 MWNH 1078

Fossil evidence provides a window into their evolutionary past. Fossils from the late Pleistocene in France and Italy show the species existed during the last glacial period. Some evidence suggests that the Alpine ibex was larger during the Pleistocene than it is today. The genus Capra may have originated in Central Asia before spreading to Europe and East Africa. Furthermore, fossils of the genus Tossunnoria from the late Miocene in China appear to be transitional between goats and their ancestors.

Europe topography prehist-map alpine-ibex
Europe topography prehist-map alpine-ibex

Understanding the life cycle of the ibex reveals how they manage extreme environments. They do not hibernate during the winter. Instead, they reduce their heart rate and metabolism to conserve energy. They take shelter in small caves or overhangs on cold nights and bask in the morning sun. The breeding process involves a two-phase rut. In the first phase, males interact with females as a group. In the second phase, a dominant male may separate to follow and guard a single female in oestrus. After a gestation period of about five months, females give birth to one or two kids on safe, rocky slopes.

Alpine ibex Cima di Terrarossa 7
Alpine ibex Cima di Terrarossa 7
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🖼️ Images & Media (7)
File:Capra ibex 06 MWNH 1078.jpg
Capra ibex 06 MWNH 1078.jpg
File:Europe topography prehist-map alpine-ibex.png
Europe topography prehist-map alpine-ibex.png
File:004 Combo Full Moon Sunset Sea of Clouds Wild Alpine Ibex Snow Photo by Giles Laurent.jpg
004 Combo Full Moon Sunset Sea of Clouds...
Steinwild Augstmatthorn.OGG
File:046 Male Alpine ibexes fighting during mating season in Grammont Photo by Giles Laurent.jpg
046 Male Alpine ibexes fighting during...
File:Alpine ibex Cima di Terrarossa 7.jpg
Alpine ibex Cima di Terrarossa 7.jpg
File:Guido Tosi Ibex release.jpg
Guido Tosi Ibex release.jpg
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